Door for elevator-wells



(N N, P. GLEAVES.

DOOR FOR ELEVATOR WELLS.

' No. 304,294. Patented Sept. 2, 1884.

WITIJEEE 5 I INVENTEIR;

N PETERS. Pnuro-um n mr. wash-pm D, c.

UNITED STATES PATENT OFFICE.

N. PORTER GLEAVES, OF BOSTON, MASSACHUSETTS.

DOOR FOR ELEVATOR-WELLS.

SPECIFICATION forming part of Letters PatentNo. 304,294, dated September2, 1884.

Application filed December 26, 1883. (X0 model.)

To all whom it may concern:

Be it known that I, N. PORTER CLEAVES, of Boston, in the county ofSuffolk and State of Massachusetts, have invented an Improvement inDoors for Elevator-Wells, of which the following description, inconnection with the accompanying drawings, is a specification.

My invention has for its object the opening of the doors of the entranceto elevator-wells, as the car ascends or descends, by mechanism operatedfrom within the car, or of passing the said doors without their beingopened, the whole being at the will of the operator within the car.

Figure l is a vertical section of an elevatorwell, with its car andoperating-pin, with my improvements applied thereto. Fig. 2 is a plan insection on the line a: x of Fig. 1, and Fig. 3 a detail in elevation.

I11 the said drawings, a, Fig. '1, shows apin, which, it turned to theleft as the car ascends, comes in contact with the slanting projectionsb on the well-door A, causing the door to open to the right, the catchcreleasing the bolt (1 by the side of the car, (see Fig. 2,) or aprojection thereon coming in contact with the curved or inclined surfaceof the catch 0; or, if it is wished to pass to an upper floor withoutopening the well-door A, turning the operating-pin (L to the right willpermit it to pass clear of the slanting projections b on suchwell-doors, and they will remain closed.

The well-door A is made to slide easily by means of the grooved wheels6, running on metal or other suitable guides, f, although any suitableappliance may be used for guiding or operating the door.

The pin a, if desirable, can be made with a springcatch to hold it inthe position required.

The bolt (1 of the well-door passes through a slot in the catch a, thecurved or inclined side of the catch being toward the inside of thewell, so as to come in contact with the side of the car, or aprojection, g, thereon, as it ascends t:

or descends, thus releasing the bolt (1 and allowing the door to beopened in the manner described. If it is desired to open the welldoorsfrom the hall-floors, the catch a may be operated by a suitable key. Thedoor of the well, after being opened in the manner described, is closedby the weight h, attached to a cord passing over the pulleyz' andconnected with the door at k; but any suitable appliance may be used forclosing the door.

\Vhat I claim as my invention, and desire to secure by Letters Patent,is

1. In a door for elevator-wells, the combination of the movableactuating-pincnwith projections, as described, on the well-door, wherebythe door can be opened, or passed without opening, at the will of theoperator within the car, substantially as and for the purposes setforth.

2. The combination of the sliding door A, provided with inclinedprojections b, the catch a, operated on by the side of the car,or aprojection thereon, and the movable actuating-pin a, operated fromwithin the car, all for the purposes substantially set forth anddescribed.

Witness my hand this 18th day of December, A. D. 1883.

SN. PORTER oLEA'vEs.

In presence oi- F. L. BREDEEN, FLoRENoE CLEAVES.

